Sounds like you have it under control. But I would like to suggest something just incase your squeak returns. Have you replaced all the return springs? Sometimes these springs get fatigued enough that they allow the shoes to "vibrate" when the brakes are not engaged. Once you apply just a little pedal the shoes no longer a free to vibrate or squeak. It is just a though and I would try all the other suggests first but as a last resort this might do the trick.
Good Luck


Brian Moore
1949 3100 5 window Deluxe
"Today is better than yesterday, but not as good as tomorrow"